#include <iostream>
#include <string>

using namespace std;

class calculator {
	public:
		int m_A;
		int m_B;

		int getresult(string s) {

			if (s == "+") {
				return m_A + m_B;
			} else if (s == "-") {
				return m_A - m_B;
			} else if (s == "*") {
				return m_A * m_B;
			}
		}


};

void test1() {
	calculator c1;
	c1.m_A = 10;
	c1.m_B = 10;

	cout << c1.getresult("+") << endl;
}


int main() {
	test1();
	return 0;
}